TPO and hematocrit: For the HT patient group, the mean TSH value (normal value: 0.3–4.2 uIU/mL), and the mean anti-TPO value (normal value: < 35 IU/mL) were as 3.90 ± 6.6 uIU/mL, and 235.47 ± 271.12 IU/mL respectively.